Version 2.73

LP264210-8P2 phenotypeActive


LP264210-8   P2 phenotype
P and P super little k (Pk) antigens are expressed on almost all red blood cells. The Pk antigen is the precursor to the globotype glycosphingolipids and consists of a terminal galactose that is added to α 1,4 galactosyltransferase 1. The P antigen is formed when β 1,3 N-acetylgalactosaminyltransferase I adds β->3 N-acetylgalactosamine to the terminal galactose of Pk. The P1 antigen belongs to the neolacto family of glycosphingolipids rather than the globo family to which P and Pk antigens belong. The P1 or P2 phenotype is expressed on over 99% of donor red cells. Both P1 and P2 synthesize P and Pk and vary only in the expression of the P1 antigen. P1 phenotype is (P1+) and P2 phenotype is (P1-). The two rare null phenotypes are the Pk and little p phenotypes. The Pk phenotype is missing the P antigen and the little p phenotype is missing both the P and the Pk antigens.[AABB Technical Manual, 18th edition, pp309-311] Source: Regenstrief LOINC

Basic Part Properties

P2 phenotype
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Construct for LOINC Short Name
P2 phenotype

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Language Variants Get Info

zh-CNChinese (China)
P2 表型
Synonyms: P2 表型(表现型);表型(表现型) P2
it-ITItalian (Italy)
P2, fenotipo
es-ESSpanish (Spain)
Fenotipo P2